Although they decided that there was not enough information to go on, they found this correlation fascinating. Graphic: Temperature vs Solar Activity May 23, 2019. International Astronomical Union Press Release. _____ “The sun is entering one of the deepest Solar Minima of the Space Age,” wrote Dr Tony Phillips just six weeks ago, on 27 Sep 2018. A new index – the group sunspot number (GSN) – was established in 1998, which is easier to measure and has been backdated to measurements since Galileo’s time. “It could happen in a matter of months,” says Martin Mlynczak of NASA’s Langley Research Center. A drawing of the Sun made by Galileo Galilei on 23 June 1613 showing the positions and sizes of a number of sunspots. , or other equally valid analysis methods, and when using either the Wolf or Group sunspot numbers. But they also show the correlation ends when the modern global warming trend begins in … Sunspots have been recognized as early as 28 B.C. In a paper published in 2009, Abdussamatov wrote that there have been 18 Maunder-type minima of deep temperature drops in the last 7,500 years, “which without fail follow after natural warming.” And, correspondingly, while in the periods of high sunspot maxima, there have been periods of … Because of the limitations of telescopes in those days, the smaller spots could have easily been missed, some have argued. Friis-Christensen and Lassen showed that sunspot numbers between 1861 and 1989 display a significant relationship with the Northern Hemisphere mean temperatures. As described in the main text of this paper, the corrected data in Table 2 did not yield statistically significant evidence of a relationship between sunspot activity and the timing of pandemics, for either the ϕ statistic used by Tapping et al. In the 1992 Conference in Dubai many scientists sat down to discuss the threat of global warming. Sunspots have been tracked systematically since 1700. Sunspots and Cosmic Radiation One of the possible explanations for a link between sunspots and weather is via cosmic rays. Activity 2: Sunspot Activity and Ocean Temperature Introduction Scientists have found that there is a possible correlation between the average ocean temperature and the solar sunspot activity. Sunspot activity cycles are about every eleven years, with some variation in length. This index was based solely on the number of sunspot groups. 1: Sunspot activity and temperature. We can compare these two records and measure the relationship. Temperature has been recorded in Central England since 1659. It is also accepted that there is a negative correlation between sunspots and cosmic rays. Sunspots and Temperature by Ed Caryl. All I can do is report, “Hey, there is a correlation here that is interesting.” What we have done is input everything and correlate markets, economies, weather, climate, etc.